40831306 has 16 divisors (see below), whose sum is σ = 62840448. Its totient is φ = 19890000.

The previous prime is 40831303. The next prime is 40831321. The reversal of 40831306 is 60313804.

It is not an unprimeable number, because it can be changed into a prime (40831303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14731 + ... + 17281.

It is an arithmetic number, because the mean of its divisors is an integer number (3927528).

Almost surely, 2^40831306 is an apocalyptic number.

40831306 is a deficient number, since it is larger than the sum of its proper divisors (22009142).

40831306 is a wasteful number, since it uses less digits than its factorization.

40831306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40831306 is about 6389.9378713725. The cubic root of 40831306 is about 344.3481523487.

The spelling of 40831306 in words is "forty million, eight hundred thirty-one thousand, three hundred six".